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07/20/2023
An Iterative Wavelet Threshold for Signal Denoising
This paper introduces an adaptive filtering process based on shrinking w...
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06/20/2023
Low-complexity Multidimensional DCT Approximations
In this paper, we introduce low-complexity multidimensional discrete cos...
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08/07/2022
2-D Rayleigh Autoregressive Moving Average Model for SAR Image Modeling
Two-dimensional (2-D) autoregressive moving average (ARMA) models are co...
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08/07/2022
Improved Point Estimation for the Rayleigh Regression Model
The Rayleigh regression model was recently proposed for modeling amplitu...
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07/29/2022
Robust Rayleigh Regression Method for SAR Image Processing in Presence of Outliers
The presence of outliers (anomalous values) in synthetic aperture radar ...
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07/29/2022
Signal Detection and Inference Based on the Beta Binomial Autoregressive Moving Average Model
This paper proposes the beta binomial autoregressive moving average mode...
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07/29/2022
Low-complexity Approximate Convolutional Neural Networks
In this paper, we present an approach for minimizing the computational c...
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07/29/2022
Low-Complexity Loeffler DCT Approximations for Image and Video Coding
This paper introduced a matrix parametrization method based on the Loeff...
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07/24/2022
DCT Approximations Based on Chen's Factorization
In this paper, two 8-point multiplication-free DCT approximations based ...
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07/24/2022
Prediction Intervals in the Beta Autoregressive Moving Average Model
In this paper, we propose five prediction intervals for the beta autoreg...
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07/23/2022
Wavelength-Resolution SAR Ground Scene Prediction Based on Image Stack
This paper presents five different statistical methods for ground scene ...
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07/23/2022
Rayleigh Regression Model for Ground Type Detection in SAR Imagery
This letter proposes a regression model for nonnegative signals. The pro...
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07/19/2022
Towards a Low-SWaP 1024-beam Digital Array: A 32-beam Sub-system at 5.8 GHz
Millimeter wave communications require multibeam beamforming in order to...
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07/12/2022
Fast Radix-32 Approximate DFTs for 1024-Beam Digital RF Beamforming
The discrete Fourier transform (DFT) is widely employed for multi-beam d...
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06/05/2022
Autoregressive Model for Multi-Pass SAR Change Detection Based on Image Stacks
Change detection is an important synthetic aperture radar (SAR) applicat...
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06/03/2022
The Gamma Generalized Normal Distribution: A Descriptor of SAR Imagery
We propose a new four-parameter distribution for modeling synthetic aper...
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06/03/2022
Beta Generalized Normal Distribution with an Application for SAR Image Processing
We introduce the beta generalized normal distribution which is obtained ...
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06/02/2022
On Some Properties of the Beta Inverse Rayleigh Distribution
We study with some details a lifetime model of the class of beta general...
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06/02/2022
Block-Parallel Systolic-Array Architecture for 2-D NTT-based Fragile Watermark Embedding
Number-theoretic transforms (NTTs) have been applied in the fragile wate...
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06/01/2022
Radix-2 Self-Recursive Sparse Factorizations of Delay Vandermonde Matrices for Wideband Multi-Beam Antenna Arrays
This paper presents a self-contained factorization for the Vandermonde m...
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06/01/2022
Efficient and Self-Recursive Delay Vandermonde Algorithm for Multi-Beam Antenna Arrays
This paper presents a self-contained factorization for the delay Vanderm...
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06/01/2022
The McDonald Normal Distribution
A five-parameter distribution called the McDonald normal distribution is...
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06/01/2022
On Some Properties of the Beta Normal Distribution
The beta normal distribution is a generalization of both the normal dist...
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05/31/2022
Low-complexity Three-dimensional Discrete Hartley Transform Approximations for Medical Image Compression
The discrete Hartley transform (DHT) is a useful tool for medical image ...
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05/31/2022
A Class of Low-complexity DCT-like Transforms for Image and Video Coding
The discrete cosine transform (DCT) is a relevant tool in signal process...
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11/28/2021
Low-complexity Rounded KLT Approximation for Image Compression
The Karhunen-Loève transform (KLT) is often used for data decorrelation ...
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11/28/2021
Data-independent Low-complexity KLT Approximations for Image and Video Coding
The Karhunen-Loève transform (KLT) is often used for data decorrelation ...
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10/30/2021
Von Mises Tapering: A New Circular Windowing
Discrete and continuous standard windowing are revisited and a a new tap...
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08/04/2021
Low-complexity Scaling Methods for DCT-II Approximations
This paper introduces a collection of scaling methods for generating 2N-...
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03/08/2021
Geometrical Representation for Number-theoretic Transforms
This short note introduces a geometric representation for binary (or ter...
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08/21/2020
Low-complexity Architecture for AR(1) Inference
In this Letter, we propose a low-complexity estimator for the correlatio...
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08/07/2020
Rounded Hartley Transform: A Quasi-involution
A new multiplication-free transform derived from DHT is introduced: the ...
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07/05/2020
An Integer Approximation Method for Discrete Sinusoidal Transforms
Approximate methods have been considered as a means to the evaluation of...
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06/19/2020
A Multiparametric Class of Low-complexity Transforms for Image and Video Coding
Discrete transforms play an important role in many signal processing app...
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08/08/2018
Low-complexity 8-point DCT Approximation Based on Angle Similarity for Image and Video Coding
The principal component analysis (PCA) is widely used for data decorrela...
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07/21/2018
Fast Matrix Inversion and Determinant Computation for Polarimetric Synthetic Aperture Radar
This paper introduces a fast algorithm for simultaneous inversion and de...
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01/25/2018
A New Algorithm for Double Scalar Multiplication over Koblitz Curves
Koblitz curves are a special set of elliptic curves and have improved pe...
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01/17/2018
A Kotel'nikov Representation for Wavelets
This paper presents a wavelet representation using baseband signals, by ...
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01/17/2018
Efficient Computation of the 8-point DCT via Summation by Parts
This paper introduces a new fast algorithm for the 8-point discrete cosi...
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10/30/2017
VLSI Computational Architectures for the Arithmetic Cosine Transform
The discrete cosine transform (DCT) is a widely-used and important signa...
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10/27/2017
A Single-Channel Architecture for Algebraic Integer Based 8×8 2-D DCT Computation
An area efficient row-parallel architecture is proposed for the real-tim...
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02/06/2017
A Digital Hardware Fast Algorithm and FPGA-based Prototype for a Novel 16-point Approximate DCT for Image Compression Applications
The discrete cosine transform (DCT) is the key step in many image and vi...
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09/24/2016
Low-complexity Image and Video Coding Based on an Approximate Discrete Tchebichef Transform
The usage of linear transformations has great relevance for data decorre...
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06/23/2016
Multiplierless 16-point DCT Approximation for Low-complexity Image and Video Coding
An orthogonal 16-point approximate discrete cosine transform (DCT) is in...
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05/27/2016
An Orthogonal 16-point Approximate DCT for Image and Video Compression
A low-complexity orthogonal multiplierless approximation for the 16-poin...
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02/02/2015
A Class of DCT Approximations Based on the Feig-Winograd Algorithm
A new class of matrices based on a parametrization of the Feig-Winograd ...
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01/28/2015
A Discrete Tchebichef Transform Approximation for Image and Video Coding
In this paper, we introduce a low-complexity approximation for the discr...
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01/13/2015